var colors = [
    // "#05607D",
    "#00FFF0",
    // "#4D4D4D"
    // "#3366cc", "#dc3912", "#ff9900", "#109618", "#990099", "#0099c6", "#dd4477", "#66aa00",
    // "#b82e2e", "#316395", "#994499", "#22aa99", "#aaaa11", "#6633cc", "#e67300", "#8b0707",
    // "#651067", "#329262", "#5574a6", "#3b3eac"
];
AMapUI.load(['ui/geo/DistrictExplorer', 'lib/$'], function (DistrictExplorer, $) {
    //创建一个实例
    let districtExplorer = window.districtExplorer = new DistrictExplorer({
        eventSupport: true, //打开事件支持
        map: map
    });
    let node_all;
    //当前聚焦的区域
    let currentAreaNode = null;

    //鼠标hover提示内容
    // var $tipMarkerContent = $("<div class='tipMarker top'></div>");

    let $tipMarkerContent = $('<div style="color:white;font-size:3px"></div>');
    // let $tipMarkerContent = $('<div style="color: white;font-size: 3px;font-family: 微软雅黑" face="微软雅黑" size="3" color="#FFFFFF"></div>');

    let tipMarker = new AMap.Marker({
        content: $tipMarkerContent.get(0),
        offset: new AMap.Pixel(0, 0),
        bubble: true,
        zIndex: 99
    });

    //根据Hover状态设置相关样式
    function toggleHoverFeature(feature, isHover, position) {

        tipMarker.setMap(isHover ? map : null);

        if (!feature) {
            return;
        }

        let props = feature.properties;

        if (isHover) {

            //更新提示内容
            $tipMarkerContent.html(props.name);
            //更新位置
            tipMarker.setPosition(position || props.center);
        }

        $('#area-tree').find('h2[data-adcode="' + props.adcode + '"]').toggleClass('hover', isHover);

        //更新相关多边形的样式
        let polys = districtExplorer.findFeaturePolygonsByAdcode(props.adcode);
        for (let i = 0, len = polys.length; i < len; i++) {

            polys[i].setOptions({
                fillOpacity: isHover ? 0.5 : 0.2
            });
        }
    }

    //监听feature的hover事件
    districtExplorer.on('featureMouseout featureMouseover', function (e, feature) {
        toggleHoverFeature(feature, e.type === 'featureMouseover',
            e.originalEvent ? e.originalEvent.lnglat : null);
    });

    //监听鼠标在feature上滑动
    districtExplorer.on('featureMousemove', function (e, feature) {
        //更新提示位置
        tipMarker.setPosition(e.originalEvent.lnglat);
    });

    //feature被点击
    districtExplorer.on('featureClick', function (e, feature) {

        let props = feature.properties;

        //如果存在子节点
        if (props.childrenNum > 0) {
            //切换聚焦区域
            switch2AreaNode(props.adcode);
        } else {
            // var node =  switch1AreaNode(props.adcode);
            render(node_all);
            map.setZoom(11);
            // var ln = new AMap.LngLat(116.418757,39.917544);
            map.setCenter(props.center);
            tipMarker.setMap(null);
        }
    });

    function render(areaNode) {
        //更新地图视野
        map.setBounds(areaNode.getBounds(), null, null, true);

        //清除已有的绘制内容
        districtExplorer.clearFeaturePolygons();

        //绘制子区域
        districtExplorer.renderSubFeatures(areaNode, function (feature, i) {

            var fillColor = colors[i % colors.length];
            // var strokeColor = colors[colors.length - 1 - i % colors.length];
            var strokeColor = "#FFFFFF";

            return {
                cursor: 'default',
                bubble: true,
                strokeColor: strokeColor, //线颜色
                strokeOpacity: 1, //线透明度
                strokeWeight: 1, //线宽
                fillColor: null, //填充色
                fillOpacity: 0, //填充透明度
            };
        });

        //绘制父区域
        districtExplorer.renderParentFeature(areaNode, {
            cursor: 'default',
            bubble: true,
            strokeColor: '#FFFFFF', //线颜色
            strokeOpacity: 1, //线透明度
            strokeWeight: 1, //线宽
            fillColor: null, //填充色
            fillOpacity: 0.35, //填充透明度
        });
    }

    //绘制某个区域的边界
    function renderAreaPolygons(areaNode) {
        node_all = areaNode;
        //更新地图视野
        // map.setBounds(areaNode.getBounds(), null, null, true);
        // map.setZoom(8.33)
        map.setZoom(8);
        //清除已有的绘制内容
        districtExplorer.clearFeaturePolygons();

        //绘制子区域
        districtExplorer.renderSubFeatures(areaNode, function (feature, i) {

            // var fillColor = colors[i % colors.length];
            // var strokeColor = colors[colors.length - 1 - i % colors.length];
            var strokeColor = '#FFFFFF';

            return {
                cursor: 'default',
                bubble: true,
                strokeColor: strokeColor, //线颜色
                strokeOpacity: 1, //线透明度
                strokeWeight: 1, //线宽
                fillColor: null, //填充色
                fillOpacity: 0.35, //填充透明度
            };
        });

        //绘制父区域
        districtExplorer.renderParentFeature(areaNode, {
            cursor: 'default',
            bubble: true,
            strokeColor: '#FFFFFF', //线颜色
            strokeOpacity: 1, //线透明度
            strokeWeight: 1, //线宽
            fillColor: null, //填充色
            fillOpacity: 0.35, //填充透明度
        });
    }

    //切换区域后刷新显示内容
    function refreshAreaNode(areaNode) {

        districtExplorer.setHoverFeature(null);

        renderAreaPolygons(areaNode);

        //更新选中节点的class
        let $nodeEles = $('#area-tree').find('h2');

        $nodeEles.removeClass('selected');

        let $selectedNode = $nodeEles.filter('h2[data-adcode=' + areaNode.getAdcode() + ']').addClass('selected');

        //展开下层节点
        $selectedNode.closest('li').removeClass('hide-sub');

        //折叠下层的子节点
        $selectedNode.siblings('ul.sublist').children().addClass('hide-sub');
    }

    //切换区域
    function switch2AreaNode(adcode, callback) {

        if (currentAreaNode && ('' + currentAreaNode.getAdcode() === '' + adcode)) {
            return;
        }

        loadAreaNode(adcode, function (error, areaNode) {

            if (error) {

                if (callback) {
                    callback(error);
                }

                return;
            }

            currentAreaNode = window.currentAreaNode = areaNode;

            //设置当前使用的定位用节点
            districtExplorer.setAreaNodesForLocating([currentAreaNode]);

            refreshAreaNode(areaNode);

            if (callback) {
                callback(null, areaNode);
            }
        });
    }

    // function switch1AreaNode(adcode) {
    //     let node = districtExplorer.loadAreaNode(adcode, function (error, areaNode) {
    //         return areaNode;
    //     });
    //     return node;
    // }

    //加载区域
    function loadAreaNode(adcode, callback) {

        districtExplorer.loadAreaNode(adcode, function (error, areaNode) {

            if (error) {

                if (callback) {
                    callback(error);
                }

                console.error(error);

                return;
            }

            if (callback) {
                callback(null, areaNode);
            }
        });
    }

    //重庆
    switch2AreaNode(110000);
});